Frigo Indus water chiller with six fans, side view
Insulated chilled water tank and twin circulation pumps
Click to enlarge
Frigo Indus water chiller with six fans, side view
Insulated chilled water tank and twin circulation pumps
Two Frigo Indus water chillers with V-shaped condensers, installed under a shelter
Air-cooled water chiller, 20 to 1000 kW
Back to products
Bitzer HSK / HSN semi-hermetic screw compressor (HS.85 series)
Bitzer HSK semi-hermetic screw compressor

Bitzer screw water chiller, 300 to 1000 kW

Afric Froid Bitzer screw water chiller, air-cooled: 8 sizes from 300 to 1000 kW, compressors: Bitzer screws, CSH compact or HSK semi-hermetic, with R134a, R407C or R290. Custom-built, on quote. Choose your size below to see its specifications.

Request a quote

SKU: N/A Category:
Description

The Afric Froid screw water chiller covers high capacities, from 300 to 1000 kW, with Bitzer screw compressors. The CSH series is a compact screw with an integrated oil separator, designed for air-cooled chillers working at high condensing temperatures. The HSK series is a semi-hermetic screw, fitted with a separate oil separator. A slider controls the compressor capacity: the unit adapts to the load without frequent starts.

The sizes

Cooling capacity Water flow (m³/h)
300 kW 51.6
400 kW 68.8
500 kW 86.0
600 kW 103.2
700 kW 120.4
800 kW 137.6
900 kW 154.8
1000 kW 172.0

Nominal capacity with water from 12 to 7 °C and 38 °C outdoor air, a harder condition than the 35 °C of the EN 14511 standard. Water flow for a 5 °C difference: flow (m³/h) = capacity (kW) / (5 × 1.163). In very hot weather the unit produces less: we size it for the maximum temperature of your site, with the reinforced 50 °C version if needed. Intermediate capacities on request.

Why Bitzer screws?

  • High capacities: few compressors for a large capacity, so fewer parts and a simpler circuit.
  • Capacity control by slider: capacity follows the load and the water temperature stays stable.
  • Long service life: the screw has no pistons and no suction or discharge valves, and runs smoothly, with very few wearing parts.
  • High condensing temperatures: the CSH series is designed for air-cooled units running in hot weather.
  • Refrigerants: R134a or R407C; for R290, Bitzer offers propane versions, CSHP and CS PRO.

Options

  • Hydraulic module with circulation pump and second standby pump.
  • Storage tank (buffer tank) in galvanized or stainless steel.
  • Secondary pumping station with a frequency inverter on the pump.
  • Inverter compressors (variable speed).
  • Condenser with EC fans.
  • Stainless steel plate or shell and tube evaporator.
  • Glycol water below 0 °C, heat recovery, reinforced version for 50 °C air.

See also our Danfoss scroll chillers and Bock reciprocating chillers, our 20 to 1000 kW water chiller page comparing the three technologies, and the chillers category.

Afric Froid, your chiller manufacturer

Afric Froid designs, builds, installs and services its water chillers in Tunisia, Algeria, Senegal and Ivory Coast. Choose a size below or tell us the application, the flow, the water temperatures and the maximum outdoor temperature: we will send you a proposal and a quote.

Additional information
Capacity300 kW – 51.6 m³/h, 400 kW – 68.8 m³/h, 500 kW – 86.0 m³/h, 600 kW – 103.2 m³/h, 700 kW – 120.4 m³/h, 800 kW – 137.6 m³/h, 900 kW – 154.8 m³/h, 1000 kW – 172.0 m³/h